Question about Master Lock Home Security

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Master Lock 5401D wall mounted

I just installed, reset the combo, entered code and it opened. Closed and tried again and it will not open. The "open" latch does go all the way down but it is not releasing the door.

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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lobsterman72
  • 91 Answers

SOURCE: Door will only close when held down

That normally happens when the sensors aren't aligned. Both sensors have led lights on them the yellow/orange one will stay on all the time the green one will go out if it cant see the other sensor. Possibly theres a wire that's broken or the other sensor is really out of alignment. Check every inch of wiring from the sensor to the opener, remove wire nuts if present and check the connections. The wires that are used are small, solid and can break easily. Also see if there's a staple that's too tight, move the wire abit where it's stapled and look for damage.

Posted on Jun 27, 2008

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  • 6 Answers

SOURCE: New Home, existing system, no information on what current access code is

Powering down for several hours should reset the code to 1234.

To power down, find where it plugs into the wall. It'll be a big plug, about the size of your fist ( a three-inch, block style plug), black, white or beige in color, probably a little screw holding it in. It may be directly below the panel or could be in the room on the other side of the wall of the panel. Otherwise, it may be in a garage, basement or attic. It may be in a weird place, like behind a couch in the living room or on the ceiling in the garage. Good luck finding it!

Next, disconnect the back up battery. This can be tricky because it's really easy to break the little tab that holds the compartment shut. With the cover open, look at the top of the panel or the sides/corners. CAREFULLY push the tab, open the cover and disconnect the battery.

Leave it powered down for 24 hours and then plug in the battery first, then plug it into the wall. The code should (hopefully) be 1234 now.

Posted on Nov 20, 2008

motor1258
  • 6674 Answers

SOURCE: 97 Camry - trunk will not latch closed

Sparay lock assy with lubricant, and look where release cable attaches to lock assy, and push/pry it one way or the other to get it to move, opposite of where it is. Lube cable too.

Posted on Jan 09, 2009

  • 244 Answers

SOURCE: remotes not working door won't go down

safety beam problems

Posted on Jan 15, 2009

  • 1 Answer

SOURCE: door won't open after self-cleaning cycle is complete

Turns out that the latch is attached to a plastic piece (made by the manufacturer) and the spring melted! To boot, the fuse in the back which aids in heating the oven went out also. Repair man said this was typical after several uses in cleaning cycle. He recommended using a gentle steel wool pad with soap built in to gently remove backed on food instead of using cleaning cycle. It is just too hot for too long, and there seems to be a domino effect with things that will go wrong. Nothing like the old fashioned way and a little elbow grease!

Posted on Mar 20, 2009

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